Question for the group..

Jim Thompson · Apr 22, 2013

On Mon, 22 Apr 2013 14:29:49 -0500, amdx <amdx@knology.net> wrote:

On 4/21/2013 3:23 PM, Ian Field wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:arg8n8l0oie8hgors1et4ps0bde2faiqfr@4ax.com...
On Sun, 21 Apr 2013 17:39:30 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:fvo7n8pr4nmc93g160oc68bvh8rkrfquh4@4ax.com...
On Thu, 18 Apr 2013 22:58:09 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"Dave" <db5151@hotmail.com> wrote in message
news:CKSdnQkD39KYpu3MnZ2dnUVZ_hmdnZ2d@posted.internetamerica...
I have an automatic battery charger which is totally non-functional,
apparently not sensing when it is connected to a load, and the first
thing
I note about it is that it makes prodigious use of the 2N3904
transistor
on its main control board. And one of these (2N3904) has an odd
characteristic- it measures .676 VDC from emittor to collector,
rather
than the typical OL that the others measure, or that I get from a
2N3904
out of stock. (Note that this is with the negative or black lead
from
the
DMM on the emittor and the positive or red on the collector, that
I get
a
.676 VDC reading on the DMM.)

Anybody have any idea as to what this would indicate about the
particular
transistor in question? It's been too may years since I've done
this on
a
regular basis, and I'm having to clean the cobwebs out of the
attice to
try and figure it out. MANY THANKS for any feedback.

You say "not sensing when its connected to to a load" as if the
load was
something other than a battery.

Your "fully automatic battery charger" senses a voltage produced by
the
battery to detect correct polarity - obviously a "load" will not
produce a
voltage for the "fully automatic battery charger" to sense. A
totally dead
flat battery will also not provide a voltage for polarity detection.

I keep an old iron cored transformer to get things started just in
case I
encounter a dead flat battery.

---
Interesting...

I wasn't aware you could use the AC output from an old iron-cored
transformer to get a dead flat battery started.

How does that work, exactly?

Well as long as the best you can do is pick on the occasional typo, I've
little to worry about.

---
You wrote: "I keep an old iron cored transformer to get things started
just in case I encounter a dead flat battery."

Where's the typo???

Ah - I see now. You're too thick to see where I was going with that.
Yes, I'm too thick also.
What did you mean to say?
Mikek

John Fields · Apr 22, 2013

On Mon, 22 Apr 2013 12:24:50 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

On Mon, 22 Apr 2013 14:19:00 -0500, John Fields
jfields@austininstruments.com> wrote:

On Sun, 21 Apr 2013 21:23:54 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:arg8n8l0oie8hgors1et4ps0bde2faiqfr@4ax.com...
On Sun, 21 Apr 2013 17:39:30 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:fvo7n8pr4nmc93g160oc68bvh8rkrfquh4@4ax.com...
On Thu, 18 Apr 2013 22:58:09 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"Dave" <db5151@hotmail.com> wrote in message
news:CKSdnQkD39KYpu3MnZ2dnUVZ_hmdnZ2d@posted.internetamerica...
I have an automatic battery charger which is totally non-functional,
apparently not sensing when it is connected to a load, and the first
thing
I note about it is that it makes prodigious use of the 2N3904
transistor
on its main control board. And one of these (2N3904) has an odd
characteristic- it measures .676 VDC from emittor to collector, rather
than the typical OL that the others measure, or that I get from a
2N3904
out of stock. (Note that this is with the negative or black lead from
the
DMM on the emittor and the positive or red on the collector, that I
get
a
.676 VDC reading on the DMM.)

Anybody have any idea as to what this would indicate about the
particular
transistor in question? It's been too may years since I've done this
on
a
regular basis, and I'm having to clean the cobwebs out of the attice
to
try and figure it out. MANY THANKS for any feedback.

You say "not sensing when its connected to to a load" as if the load was
something other than a battery.

Your "fully automatic battery charger" senses a voltage produced by the
battery to detect correct polarity - obviously a "load" will not produce
a
voltage for the "fully automatic battery charger" to sense. A totally
dead
flat battery will also not provide a voltage for polarity detection.

I keep an old iron cored transformer to get things started just in case
I
encounter a dead flat battery.

---
Interesting...

I wasn't aware you could use the AC output from an old iron-cored
transformer to get a dead flat battery started.

How does that work, exactly?

Well as long as the best you can do is pick on the occasional typo, I've
little to worry about.

---
You wrote: "I keep an old iron cored transformer to get things started
just in case I encounter a dead flat battery."

Where's the typo???

Ah - I see now. You're too thick to see where I was going with that.

---
Then, since you didn't see before and your direction was indefinite,
your blaming others for being unable to read your mind is
disingenuous.

Ian is running for cover via Larkinesque-style obfuscation.

---
He's not even that good, since Larkin has, at least, technical acumen.
---

Next will come the epithets.

...Jim Thompson

---
Damn the epithets, full speed ahead!!!

--
JF

Ian Field · Apr 22, 2013

"amdx" <amdx@knology.net> wrote in message
news:16651$51758e2d$18d66b6a$16764@KNOLOGY.NET...

On 4/21/2013 3:23 PM, Ian Field wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:arg8n8l0oie8hgors1et4ps0bde2faiqfr@4ax.com...
On Sun, 21 Apr 2013 17:39:30 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:fvo7n8pr4nmc93g160oc68bvh8rkrfquh4@4ax.com...
On Thu, 18 Apr 2013 22:58:09 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"Dave" <db5151@hotmail.com> wrote in message
news:CKSdnQkD39KYpu3MnZ2dnUVZ_hmdnZ2d@posted.internetamerica...
I have an automatic battery charger which is totally non-functional,
apparently not sensing when it is connected to a load, and the first
thing
I note about it is that it makes prodigious use of the 2N3904
transistor
on its main control board. And one of these (2N3904) has an odd
characteristic- it measures .676 VDC from emittor to collector,
rather
than the typical OL that the others measure, or that I get from a
2N3904
out of stock. (Note that this is with the negative or black lead
from
the
DMM on the emittor and the positive or red on the collector, that
I get
a
.676 VDC reading on the DMM.)

Anybody have any idea as to what this would indicate about the
particular
transistor in question? It's been too may years since I've done
this on
a
regular basis, and I'm having to clean the cobwebs out of the
attice to
try and figure it out. MANY THANKS for any feedback.

You say "not sensing when its connected to to a load" as if the
load was
something other than a battery.

Your "fully automatic battery charger" senses a voltage produced by
the
battery to detect correct polarity - obviously a "load" will not
produce a
voltage for the "fully automatic battery charger" to sense. A
totally dead
flat battery will also not provide a voltage for polarity detection.

I keep an old iron cored transformer to get things started just in
case I
encounter a dead flat battery.

---
Interesting...

I wasn't aware you could use the AC output from an old iron-cored
transformer to get a dead flat battery started.

How does that work, exactly?

Well as long as the best you can do is pick on the occasional typo,
I've
little to worry about.

---
You wrote: "I keep an old iron cored transformer to get things started
just in case I encounter a dead flat battery."

Where's the typo???

Ah - I see now. You're too thick to see where I was going with that.
Yes, I'm too thick also.
What did you mean to say?
Mikek

Old iron cored transformer charger.

amdx · Apr 22, 2013

On 4/22/2013 3:36 PM, Ian Field wrote:

"amdx" <amdx@knology.net> wrote in message
news:16651$51758e2d$18d66b6a$16764@KNOLOGY.NET...
On 4/21/2013 3:23 PM, Ian Field wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:arg8n8l0oie8hgors1et4ps0bde2faiqfr@4ax.com...
On Sun, 21 Apr 2013 17:39:30 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:fvo7n8pr4nmc93g160oc68bvh8rkrfquh4@4ax.com...
On Thu, 18 Apr 2013 22:58:09 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"Dave" <db5151@hotmail.com> wrote in message
news:CKSdnQkD39KYpu3MnZ2dnUVZ_hmdnZ2d@posted.internetamerica...
I have an automatic battery charger which is totally
non-functional,
apparently not sensing when it is connected to a load, and the
first
thing
I note about it is that it makes prodigious use of the 2N3904
transistor
on its main control board. And one of these (2N3904) has an odd
characteristic- it measures .676 VDC from emittor to collector,
rather
than the typical OL that the others measure, or that I get from a
2N3904
out of stock. (Note that this is with the negative or black lead
from
the
DMM on the emittor and the positive or red on the collector, that
I get
a
.676 VDC reading on the DMM.)

Anybody have any idea as to what this would indicate about the
particular
transistor in question? It's been too may years since I've done
this on
a
regular basis, and I'm having to clean the cobwebs out of the
attice to
try and figure it out. MANY THANKS for any feedback.

You say "not sensing when its connected to to a load" as if the
load was
something other than a battery.

Your "fully automatic battery charger" senses a voltage produced by
the
battery to detect correct polarity - obviously a "load" will not
produce a
voltage for the "fully automatic battery charger" to sense. A
totally dead
flat battery will also not provide a voltage for polarity detection.

I keep an old iron cored transformer to get things started just in
case I
encounter a dead flat battery.

---
Interesting...

I wasn't aware you could use the AC output from an old iron-cored
transformer to get a dead flat battery started.

How does that work, exactly?

Well as long as the best you can do is pick on the occasional typo,
I've
little to worry about.

---
You wrote: "I keep an old iron cored transformer to get things started
just in case I encounter a dead flat battery."

Where's the typo???

Ah - I see now. You're too thick to see where I was going with that.
Yes, I'm too thick also.
What did you mean to say?

Oh! A battery charger, I keep one in the garage for the car we rarely
use. Although about six months ago I bought a HF trickle charger and the
battery stays charged now.
Mikek

Daniel Pitts · Apr 23, 2013

On 4/21/13 1:23 PM, Ian Field wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:arg8n8l0oie8hgors1et4ps0bde2faiqfr@4ax.com...
On Sun, 21 Apr 2013 17:39:30 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:fvo7n8pr4nmc93g160oc68bvh8rkrfquh4@4ax.com...
On Thu, 18 Apr 2013 22:58:09 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"Dave" <db5151@hotmail.com> wrote in message
news:CKSdnQkD39KYpu3MnZ2dnUVZ_hmdnZ2d@posted.internetamerica...
I have an automatic battery charger which is totally non-functional,
apparently not sensing when it is connected to a load, and the first
thing
I note about it is that it makes prodigious use of the 2N3904
transistor
on its main control board. And one of these (2N3904) has an odd
characteristic- it measures .676 VDC from emittor to collector,
rather
than the typical OL that the others measure, or that I get from a
2N3904
out of stock. (Note that this is with the negative or black lead
from
the
DMM on the emittor and the positive or red on the collector, that
I get
a
.676 VDC reading on the DMM.)

Anybody have any idea as to what this would indicate about the
particular
transistor in question? It's been too may years since I've done
this on
a
regular basis, and I'm having to clean the cobwebs out of the
attice to
try and figure it out. MANY THANKS for any feedback.

You say "not sensing when its connected to to a load" as if the
load was
something other than a battery.

Your "fully automatic battery charger" senses a voltage produced by
the
battery to detect correct polarity - obviously a "load" will not
produce a
voltage for the "fully automatic battery charger" to sense. A
totally dead
flat battery will also not provide a voltage for polarity detection.

I keep an old iron cored transformer to get things started just in
case I
encounter a dead flat battery.

---
Interesting...

I wasn't aware you could use the AC output from an old iron-cored
transformer to get a dead flat battery started.

How does that work, exactly?

Well as long as the best you can do is pick on the occasional typo, I've
little to worry about.

---
You wrote: "I keep an old iron cored transformer to get things started
just in case I encounter a dead flat battery."

Where's the typo???

Ah - I see now. You're too thick to see where I was going with that.

Or perhaps he just doesn't understand how charging a battery works. I'm
more or less on the same boat, but if I were really that interested, I'd
do some googling.

My pure *guess*, being ignorant as I am, would be to pass the output end
of the transformer through a full-wave rectifier, and simply connect the
outputs of that to the battery. The danger of this approach of course
is that it doesn't have any kind of feedback to slow or stop the charge
rate. No temp sensing, no charge sensing, no polarity sensing, etc...
Left unattended the battery could catch fire or explode. Yay.

Jim Thompson · Apr 23, 2013

On Mon, 22 Apr 2013 17:03:39 -0500, amdx <amdx@knology.net> wrote:

On 4/22/2013 3:36 PM, Ian Field wrote:

"amdx" <amdx@knology.net> wrote in message
news:16651$51758e2d$18d66b6a$16764@KNOLOGY.NET...
On 4/21/2013 3:23 PM, Ian Field wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:arg8n8l0oie8hgors1et4ps0bde2faiqfr@4ax.com...
On Sun, 21 Apr 2013 17:39:30 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:fvo7n8pr4nmc93g160oc68bvh8rkrfquh4@4ax.com...
On Thu, 18 Apr 2013 22:58:09 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"Dave" <db5151@hotmail.com> wrote in message
news:CKSdnQkD39KYpu3MnZ2dnUVZ_hmdnZ2d@posted.internetamerica...
I have an automatic battery charger which is totally
non-functional,
apparently not sensing when it is connected to a load, and the
first
thing
I note about it is that it makes prodigious use of the 2N3904
transistor
on its main control board. And one of these (2N3904) has an odd
characteristic- it measures .676 VDC from emittor to collector,
rather
than the typical OL that the others measure, or that I get from a
2N3904
out of stock. (Note that this is with the negative or black lead
from
the
DMM on the emittor and the positive or red on the collector, that
I get
a
.676 VDC reading on the DMM.)

Anybody have any idea as to what this would indicate about the
particular
transistor in question? It's been too may years since I've done
this on
a
regular basis, and I'm having to clean the cobwebs out of the
attice to
try and figure it out. MANY THANKS for any feedback.

You say "not sensing when its connected to to a load" as if the
load was
something other than a battery.

Your "fully automatic battery charger" senses a voltage produced by
the
battery to detect correct polarity - obviously a "load" will not
produce a
voltage for the "fully automatic battery charger" to sense. A
totally dead
flat battery will also not provide a voltage for polarity detection.

I keep an old iron cored transformer to get things started just in
case I
encounter a dead flat battery.

---
Interesting...

I wasn't aware you could use the AC output from an old iron-cored
transformer to get a dead flat battery started.

How does that work, exactly?

Well as long as the best you can do is pick on the occasional typo,
I've
little to worry about.

---
You wrote: "I keep an old iron cored transformer to get things started
just in case I encounter a dead flat battery."

Where's the typo???

Ah - I see now. You're too thick to see where I was going with that.
Yes, I'm too thick also.
What did you mean to say?

Oh! A battery charger, I keep one in the garage for the car we rarely
use. Although about six months ago I bought a HF trickle charger and the
battery stays charged now.
Mikek

Ian Field · Apr 23, 2013

"amdx" <amdx@knology.net> wrote in message
news:190ff$5175b23a$18d66b6a$1506@KNOLOGY.NET...

On 4/22/2013 3:36 PM, Ian Field wrote:

"amdx" <amdx@knology.net> wrote in message
news:16651$51758e2d$18d66b6a$16764@KNOLOGY.NET...
On 4/21/2013 3:23 PM, Ian Field wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:arg8n8l0oie8hgors1et4ps0bde2faiqfr@4ax.com...
On Sun, 21 Apr 2013 17:39:30 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:fvo7n8pr4nmc93g160oc68bvh8rkrfquh4@4ax.com...
On Thu, 18 Apr 2013 22:58:09 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"Dave" <db5151@hotmail.com> wrote in message
news:CKSdnQkD39KYpu3MnZ2dnUVZ_hmdnZ2d@posted.internetamerica...
I have an automatic battery charger which is totally
non-functional,
apparently not sensing when it is connected to a load, and the
first
thing
I note about it is that it makes prodigious use of the 2N3904
transistor
on its main control board. And one of these (2N3904) has an odd
characteristic- it measures .676 VDC from emittor to collector,
rather
than the typical OL that the others measure, or that I get from a
2N3904
out of stock. (Note that this is with the negative or black lead
from
the
DMM on the emittor and the positive or red on the collector, that
I get
a
.676 VDC reading on the DMM.)

Anybody have any idea as to what this would indicate about the
particular
transistor in question? It's been too may years since I've done
this on
a
regular basis, and I'm having to clean the cobwebs out of the
attice to
try and figure it out. MANY THANKS for any feedback.

You say "not sensing when its connected to to a load" as if the
load was
something other than a battery.

Your "fully automatic battery charger" senses a voltage produced by
the
battery to detect correct polarity - obviously a "load" will not
produce a
voltage for the "fully automatic battery charger" to sense. A
totally dead
flat battery will also not provide a voltage for polarity
detection.

I keep an old iron cored transformer to get things started just in
case I
encounter a dead flat battery.

---
Interesting...

I wasn't aware you could use the AC output from an old iron-cored
transformer to get a dead flat battery started.

How does that work, exactly?

Well as long as the best you can do is pick on the occasional typo,
I've
little to worry about.

---
You wrote: "I keep an old iron cored transformer to get things started
just in case I encounter a dead flat battery."

Where's the typo???

Ah - I see now. You're too thick to see where I was going with that.
Yes, I'm too thick also.
What did you mean to say?

Oh! A battery charger, I keep one in the garage for the car we rarely
use. Although about six months ago I bought a HF trickle charger and the
battery stays charged now.

Horses for courses - I have an optimate charger which works perfectly for
maintaining out of service batteries on float charge, but its utterly
useless if I need a flat battery charged quickly. The Tronic brand charger
from the Lidl discount chain is not so good for float charging as the
battery needs the distilled water topping up every few days, but it'll fully
charge a flat 12Ah motorcycle battery in about 20 minutes.

All of the electronic/automatic battery chargers I've seen, include
automatic polarity detection - in order to detect the polarity, the battery
must have at least a residual voltage on its terminals for the charger to
detect. If a lead-acid battery has been neglected, it may be *DEAD* flat and
not activate the chargers polarity detection so the charger doesn't start.

For this reason I keep a very ancient iron cored transformer battery charger
to "jump start" the electronic charger.

If you often have trouble getting sulphated batteries to accept charging
current; you can add a couple of capacitors to the bridge rectifier of an
ancient charger to make it voltage doubling - if you don't use large
capacitors, it will be more or less current limited above its un-doubled
voltage.

The transformers in old style chargers are often deliberately wound for poor
regulation - with very low current the voltage rises well above the nominal
charging voltage, this can usually break down mild sulphation. This works
even better with the voltage doubling trick - but if the battery is that
badly sulphated you will never get it back to 100%.

Ian Field · Apr 23, 2013

"Daniel Pitts" <newsgroup.nospam@virtualinfinity.net> wrote in message
news:4Xldt.13671$oH3.951@newsfe14.iad...

On 4/21/13 1:23 PM, Ian Field wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:arg8n8l0oie8hgors1et4ps0bde2faiqfr@4ax.com...
On Sun, 21 Apr 2013 17:39:30 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:fvo7n8pr4nmc93g160oc68bvh8rkrfquh4@4ax.com...
On Thu, 18 Apr 2013 22:58:09 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:

"Dave" <db5151@hotmail.com> wrote in message
news:CKSdnQkD39KYpu3MnZ2dnUVZ_hmdnZ2d@posted.internetamerica...
I have an automatic battery charger which is totally non-functional,
apparently not sensing when it is connected to a load, and the first
thing
I note about it is that it makes prodigious use of the 2N3904
transistor
on its main control board. And one of these (2N3904) has an odd
characteristic- it measures .676 VDC from emittor to collector,
rather
than the typical OL that the others measure, or that I get from a
2N3904
out of stock. (Note that this is with the negative or black lead
from
the
DMM on the emittor and the positive or red on the collector, that
I get
a
.676 VDC reading on the DMM.)

Anybody have any idea as to what this would indicate about the
particular
transistor in question? It's been too may years since I've done
this on
a
regular basis, and I'm having to clean the cobwebs out of the
attice to
try and figure it out. MANY THANKS for any feedback.

You say "not sensing when its connected to to a load" as if the
load was
something other than a battery.

Your "fully automatic battery charger" senses a voltage produced by
the
battery to detect correct polarity - obviously a "load" will not
produce a
voltage for the "fully automatic battery charger" to sense. A
totally dead
flat battery will also not provide a voltage for polarity detection.

I keep an old iron cored transformer to get things started just in
case I
encounter a dead flat battery.

---
Interesting...

I wasn't aware you could use the AC output from an old iron-cored
transformer to get a dead flat battery started.

How does that work, exactly?

Well as long as the best you can do is pick on the occasional typo,
I've
little to worry about.

---
You wrote: "I keep an old iron cored transformer to get things started
just in case I encounter a dead flat battery."

Where's the typo???

Ah - I see now. You're too thick to see where I was going with that.

Or perhaps he just doesn't understand how charging a battery works. I'm
more or less on the same boat, but if I were really that interested, I'd
do some googling.

My pure *guess*, being ignorant as I am, would be to pass the output end
of the transformer through a full-wave rectifier, and simply connect the
outputs of that to the battery. The danger of this approach of course is
that it doesn't have any kind of feedback to slow or stop the charge rate.
No temp sensing, no charge sensing, no polarity sensing, etc... Left
unattended the battery could catch fire or explode. Yay.

The transformers in very old chargers are usually wound for poor
regulation - a lead acid battery starts to sulphate as soon as it is only
partly discharged, short term sulphation is easily reversed by applying a
higher voltage - which is what happens when a poorly regulated transformer
is loaded by a sulphated battery that is reluctant to draw charge current.
As the sulphation dissipates, the current increases and the output voltage
heads rapidly for the nominal value.

Exploding batteries are fortunately rare, but they can gas away their
electrolyte - without it they become high resistance and the charge current
drops.

The nearest I've seen to an explosion was when I "won" an assortment of
sulphated UPS SLA batteries, to unsulphate them I rigged a table top oven as
a dropper resistor with a bridge rectifier in the N lead to feed the
battery.

On one of the batteries; an end cell got hot and also generated gas - the
plastic case got hot and melted, the gas blew a bubble in the soft plastic
which burst.

Some of the batteries were so badly sulphated that the (rectified) current
through the dropper resistor put over 200V across the battery.

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Jim Thompson

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John Fields

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Ian Field

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amdx

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Daniel Pitts

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Jim Thompson

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Ian Field

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Ian Field

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Question for the group..

Jim Thompson

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John Fields

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Ian Field

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amdx

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Daniel Pitts

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Jim Thompson

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Ian Field

Guest

Ian Field

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